CN115435559A - Grain drying machine with horizontal roller coupled with microwave - Google Patents
Grain drying machine with horizontal roller coupled with microwave Download PDFInfo
- Publication number
- CN115435559A CN115435559A CN202211039089.3A CN202211039089A CN115435559A CN 115435559 A CN115435559 A CN 115435559A CN 202211039089 A CN202211039089 A CN 202211039089A CN 115435559 A CN115435559 A CN 115435559A
- Authority
- CN
- China
- Prior art keywords
- roller
- shoveling plate
- shoveling
- plate
- plates
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001035 drying Methods 0.000 title claims description 25
- 239000000463 material Substances 0.000 claims abstract description 54
- 238000004080 punching Methods 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 235000013339 cereals Nutrition 0.000 description 61
- 238000000034 method Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000007602 hot air drying Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
- F26B11/02—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles
- F26B11/04—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B9/00—Preservation of edible seeds, e.g. cereals
- A23B9/08—Drying; Subsequent reconstitution
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/04—Agitating, stirring, or scraping devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/06—Chambers, containers, or receptacles
- F26B25/14—Chambers, containers, receptacles of simple construction
- F26B25/16—Chambers, containers, receptacles of simple construction mainly closed, e.g. drum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/32—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action
- F26B3/34—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action by using electrical effects
- F26B3/347—Electromagnetic heating, e.g. induction heating or heating using microwave energy
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B2200/00—Drying processes and machines for solid materials characterised by the specific requirements of the drying good
- F26B2200/06—Grains, e.g. cereals, wheat, rice, corn
Abstract
The invention discloses a grain dryer with a horizontal roller coupled with microwaves, which comprises a roller, a rotating mechanism for driving the roller to rotate and a microwave transmitting assembly arranged in the roller and extending along the material flowing direction; the centrifugal fan assembly is arranged on the side wall of the roller; the shoveling plate assembly comprises a plurality of groups of shoveling plate structures arranged along the axial direction of the roller, and the plurality of groups of shoveling plate structures are periodically arranged in the roller; each group of shovelling plate structures comprises 6-8 shovelling plates which are uniformly distributed along the circumference, and the shovelling plates in the adjacent group of shovelling plate structures are arranged in a staggered manner; the shoveling plates comprise a first shoveling plate and a second shoveling plate which are arranged at included angles larger than 90 degrees, the first shoveling plate is in a right-angled trapezoid shape, the second shoveling plate is in a parallelogram shape, the long edge of the second shoveling plate in the parallelogram shape is connected with the right-angled edge of the first shoveling plate in the right-angled trapezoid shape, and the inclined edge of the first shoveling plate is fixedly connected with the inner side wall of the roller; in the shoveling plate assembly, the opening directions of all shoveling plates are consistent and are consistent with the rotation direction of the roller; and the lower bottom edge of the first shoveling plate is arranged at one side close to the feed port of the roller.
Description
Technical Field
The invention relates to a grain dryer with a horizontal roller coupled with microwaves.
Background
The existing grain drying technology in China mainly adopts packed bed drying, materials are filled in a drying chamber or a drying channel in the drying process, and surface moisture is taken away by airflow when the airflow passes through gaps between grain seeds. In addition, hot air drying is a drying process driven by the difference of the moisture gradient inside the grain seeds, the diffusion of moisture from a high-concentration area to a low-concentration area is a basic mechanism of traditional ventilation drying, but the moisture gradient can also influence the stress distribution inside the grain seeds, and the excessive moisture gradient can cause the internal stress difference to be larger than the yield limit, so that cracks and waist explosion (in terms of rice) are caused, and the subsequent processing and eating quality are influenced. Therefore, the combination of grain quality maintenance and rapid drying is a difficult problem to solve for the traditional hot air drying.
Disclosure of Invention
The invention aims to: the invention aims to provide a grain drying machine with a horizontal roller coupled with microwaves, which can improve the uniformity of the grain heating and drying process and effectively avoid overlarge moisture gradient in grain seeds, thereby reducing the formation of cracks and waist bursts in the grain seeds during heating and drying.
The technical scheme is as follows: the invention relates to a grain dryer with a horizontal roller coupled with microwaves, which comprises a roller, a rotating mechanism driving the roller to rotate and a microwave transmitting assembly arranged in the roller and extending along the material flowing direction; the centrifugal fan assembly is arranged on the side wall of the roller; the shoveling plate assembly comprises a plurality of groups of shoveling plate structures arranged along the axial direction of the roller, and the plurality of groups of shoveling plate structures are periodically arranged in the roller; each group of shovelling plate structures comprises 6-8 shovelling plates which are uniformly distributed along the circumference, and the shovelling plates in the adjacent group of shovelling plate structures are arranged in a staggered manner; the shoveling plates comprise a first shoveling plate and a second shoveling plate which are arranged at included angles larger than 90 degrees, the first shoveling plate is in a right-angled trapezoid shape, the second shoveling plate is in a parallelogram shape, the long edge of the second shoveling plate in the parallelogram shape is connected with the right-angled edge of the first shoveling plate in the right-angled trapezoid shape, and the inclined edge of the first shoveling plate is fixedly connected with the inner side wall of the roller; in the shoveling plate assembly, the opening directions of all shoveling plates are consistent and are consistent with the rotation direction of the roller; the lower bottom edge of the first shoveling plate is arranged on one side close to the feed inlet of the roller.
The invention relates to a grain dryer with a horizontal roller coupled with microwaves, and the other implementation scheme is as follows: comprises a roller, a rotating mechanism driving the roller to rotate and a microwave transmitting assembly arranged in the roller and extending along the material flowing direction; the roller is formed by splicing a plurality of roller units, each roller unit consists of an annular cylinder wall and shoveling plates arranged in the cylinder wall, 6-8 shoveling plates are uniformly distributed in the cylinder wall of each roller unit along the circumference, and the shoveling plates in adjacent roller units are arranged in a staggered manner; the shoveling plates comprise a first shoveling plate and a second shoveling plate which are arranged at included angles larger than 90 degrees, the first shoveling plate is in a right trapezoid shape, the second shoveling plate is in a parallelogram shape, the long edge of the second shoveling plate in the parallelogram shape is connected with the right-angle edge of the first shoveling plate in the right trapezoid shape, and the inclined edge of the first shoveling plate is fixedly connected with the inner side wall of the roller; in the shoveling plate assembly, the opening directions of all shoveling plates are consistent and are consistent with the rotation direction of the roller; and the lower bottom edge of the first shoveling plate is arranged at one side close to the feed port of the roller.
Wherein, the length difference between the upper bottom edge and the lower bottom edge of the first shoveling plate is 12-18 cm, preferably 15cm. The length difference is used for enabling the shoveling plate to incline towards the discharge opening, grain grains are pushed to move towards the discharge opening in the grain lifting process, the moving speed of the grain grains towards the discharge opening can be influenced by the length difference of the upper bottom edge and the lower bottom edge, when the length difference of the upper bottom edge and the lower bottom edge is 15cm, the speed of the grain materials moving from the feed end to the discharge section is proper, the grain grains can be enabled to have certain retention time at the bottom to eliminate the moisture gradient inside the grains, and the grains can be fully dried under the synergistic action of hot air and microwaves; when the grain material is raised more than 18cm, the raising is too frequent, which is not beneficial to eliminating the moisture gradient inside the grains by utilizing the bottom retention time, and when the raising is less than 12cm, the raising frequency of the grain is too low, which results in poor drying efficiency.
Wherein the included angle between the first shoveling plate and the second shoveling plate is 120-130 degrees, and preferably 120 degrees. The included angle between the first shoveling plate and the second shoveling plate is 120 degrees, so that the grain seeds can be lifted to a position close to the rolling top and then slowly toppled downwards, the time of the grain seeds in a dispersion state is prolonged, and the drying effect of the grain seeds is improved. The length ratio of the corresponding width of the upper bottom edge of the first shoveling plate to the parallelogram of the second shoveling plate is 2-2.5: 1, preferably 2:1, the length ratio can cooperate with the length difference of the upper bottom edge and the lower bottom edge of the first shoveling plate to ensure that the grains are slowly pushed towards the side (the discharge opening direction) of the aggregate bucket while being fully lifted.
The material collecting barrel is sleeved at one side end of the roller and is rotatably connected with the roller through a bearing structure, and a discharge opening, an air outlet and an air inlet are formed in the material collecting barrel; the device also comprises a feeding mechanism connected with the feed inlet of the roller and a discharging mechanism connected with the discharge outlet of the collecting barrel.
The centrifugal fan assembly comprises a centrifugal fan I and a centrifugal fan II, wherein the centrifugal fan I is used for providing negative pressure for the inner cavity of the roller, and the centrifugal fan II is used for radiating heat for the microwave transmitting assembly; the centrifugal fan I is connected with an air outlet of the collecting barrel through an induced draft pipe, and a grid plate is arranged at the air outlet; and the centrifugal fan II is connected with the air inlet of the material collecting barrel through an air expanding pipe.
Wherein, for a roller with the capacity of 5 tons, the air volume of the centrifugal fan I is 5000-8000 m 3 H, the air quantity of the centrifugal fan II is 1000-2000 m 3 Preferably, the air volume of the centrifugal fan I is 5000m 3 H, the air volume of the centrifugal fan II is 1000m 3 /h。
The rotating mechanism comprises a motor, a gear ring and a gear, the gear ring and the gear are sleeved on the roller, the driving end of the motor is fixedly connected with the gear, and the gear is meshed with the gear ring sleeved on the roller.
The microwave transmitting assembly comprises a shell erected in the roller, and the end part of one side of the shell, which is far away from a feed inlet of the roller, is fixed on the inner side wall of the collecting barrel; the shell comprises two mounting plates, an included angle between the two mounting plates is an obtuse angle, the two mounting plates are fixed on the cover plate, and the two mounting plates and the cover plate enclose to form a mounting channel; along the cylinder axial, every a plurality of magnetrons are installed to impartial distance on the mounting panel, and the magnetron transmitting terminal dustcoat has the arc board of punching a hole, and the both ends of arc board of punching a hole are equipped with the shrouding, and the arc board of punching a hole and two mounting panels are all opened intensive pore structure in the region between the corresponding installation magnetron, and the wind that centrifugal fan II thigh was gone into is sent into in the installation passageway through the air intake on the collecting bucket.
The included angle between the two mounting plates is 120-160 degrees, so that the microwave can be distributed more uniformly in the roller, and the occupied space of the microwave assembly in the roller can be saved.
Wherein, the roller feed inlet is positioned above the microwave emission assembly, the feeding mechanism feeds materials into the roller through a material guide hopper which is obliquely arranged with the plane of the feed inlet, and the oblique angle is 45-60 degrees.
Has the beneficial effects that: compared with the prior art, the invention has the following remarkable effects: according to the invention, the horizontal roller and the microwaves are coupled, on one hand, the non-thermal drying effect of the microwaves can be utilized, the moisture of the materials can be rapidly transferred to the surface of grains at a lower temperature and is taken away by air flow after evaporation, on the other hand, the material can be in a throwing state in the drying chamber by the shoveling plate with a specific structure in the roller and slowly moves to the discharge end under the action of the angle of the throwing blade, the uniformity of heating and drying of the grains by the microwaves can be improved when the grains are in the throwing state, and the grains are hardly dried by the microwaves in the process of falling to the bottom of the roller from the air and being lifted again, so that the moisture in the grains can be as slow and uniform as possible, and cracks and waist burst caused by overlarge moisture gradient in the grains can be effectively avoided; the conventional rectangular shoveling plates can not realize the sufficient lifting of grain materials in the roller (the rectangular shoveling plates can only realize the stir-frying of the materials but can not realize the sufficient lifting of the materials, if the materials can not be lifted sufficiently, grain seeds can not be uniformly heated by microwaves, the moisture on the surface can not be taken away by air flow in time, and simultaneously, the sufficient slow tempering in the falling process can not be realized), so the dryer realizes the high-quality, rapid and efficient drying of the grains through the synergistic effect of the material scattering, the microwave drying and the convection dehumidification of the roller.
Drawings
FIG. 1 is a schematic view showing the structure of a dryer according to embodiment 1;
FIG. 2 is a front view of the dryer of embodiment 1;
FIG. 3 is a side view of the dryer of embodiment 1;
FIG. 4 is a schematic structural view of a drum according to embodiment 1;
FIG. 5 is a side view of a plurality of sets of shovelling plate structures in a drum in periodic arrangement;
FIG. 6 is a side view of each set of flight structures;
FIG. 7 is a schematic structural diagram of each group of shovelling plate structures;
FIG. 8 is a side view of the drum;
FIG. 9 is a side view of a flight;
FIG. 10 is a schematic view of the structure of a shovelling plate;
FIG. 11 is a side view of the microwave launching assembly;
FIG. 12 is a front view of the microwave emitting assembly;
FIG. 13 is a schematic view of a microwave transmitting assembly;
FIG. 14 is a schematic view showing the structure of a dryer according to embodiment 2;
FIG. 15 is a front view of the dryer of example 2;
FIG. 16 is a schematic view of the structure of a drum according to embodiment 2;
FIG. 17 is a schematic view of the construction of the drum unit;
FIG. 18 is a side view of a dip plate in the drum unit;
FIG. 19 is a schematic structural view of a shoveling plate in the drum unit;
FIG. 20 is a side view of the drum;
FIG. 21 is a side view of a dip plate;
fig. 22 is a schematic structural view of a shoveling plate.
Detailed Description
Example 1
As shown in fig. 1 to 13, the grain dryer with a horizontal roller coupled with microwave of the present invention comprises a roller 5, a rotating mechanism for driving the roller 5 to rotate, and a microwave emitting assembly 14 disposed in the roller 5 and extending along the material flowing direction; the invention also comprises a centrifugal fan component and a shoveling plate component 51 arranged on the side wall of the roller 5; the shoveling plate assembly 51 comprises a plurality of groups of shoveling plate structures 52 arranged along the axial direction of the roller 5, and the plurality of groups of shoveling plate structures 52 are periodically arranged in the roller 5; each group of shovelling plate structures 52 comprises eight shovelling plates 53 which are uniformly distributed along the circumference, the plurality of shovelling plates 53 with included angles of 120 degrees can enable the grain materials to be in a throwing state in the roller 5 when being lifted, so that the heating and drying uniformity of the microwave on the grain materials is improved, the shovelling plates 53 in the adjacent groups of shovelling plate structures 52 are arranged in a staggered mode, each two adjacent groups of shovelling plate structures 52 are arranged in a 15-degree staggered mode, the two adjacent groups of shovelling plate structures 52 are arranged in a staggered mode, so that the grain materials in the roller 5 can be shoveled more uniformly, and dead drying corners can be avoided; the shoveling plate 53 comprises a first shoveling plate 503 and a second shoveling plate 504 which are arranged at an included angle of 120 degrees, the first shoveling plate 503 is in a right trapezoid shape, the second shoveling plate 504 is in a parallelogram shape, the long edge of the second shoveling plate 504 in the parallelogram shape is connected with the right-angled edge of the first shoveling plate 503 in the right trapezoid shape, and the inclined edge of the first shoveling plate 503 is fixedly connected with the inner side wall of the roller 5; in the shoveling plate assembly 51, the opening directions of all shoveling plates 53 are consistent and consistent with the rotation direction of the roller 5; the lower bottom edge of the first shoveling plate 503 is arranged at one side close to the feed inlet of the roller 5; the length difference between the upper bottom edge and the lower bottom edge of the first shoveling plate 503 is 15cm, and the length ratio of the corresponding width of the upper bottom edge of the first shoveling plate 503 to the parallelogram of the second shoveling plate 504 is 2:1. the shoveling plate 53 is formed by folding a polygonal flat plate with a special shape, the included angle between the two folded planes is 120 degrees, one side of the folding line is trapezoidal, the other side of the folding line is parallelogram, the shoveling plate 53 is arranged on the roller 5, two ends of the short side of the parallelogram form a slope, and the slope drives grains to ascend in the roller 5 and simultaneously slowly move towards the discharge end. The shoveling plates in the roller 5 rake up the grain materials and then scatter the grain materials from the top end, the microwave heats and dries the grain materials in the scattering process and a small amount of grain materials accumulated at the bottom of the roller 5, and water evaporated from the surface of the grain seeds is discharged out of the roller 5 through airflow driven by the negative pressure of the centrifugal fan I8.
The grain dryer with the horizontal roller coupled with the microwave also comprises a collecting barrel 6 which is rotationally connected with the roller 5, wherein the collecting barrel 6 is sleeved at the end part of one side of the roller 5, the collecting barrel 6 is rotationally connected with the roller 5 through a bearing structure, and a discharge opening, an air outlet and an air inlet are arranged on the collecting barrel 6; the collecting barrel 6 does not rotate along with the roller 5 and is sleeved outside the left end part of the roller 5; the invention also comprises a feeding mechanism connected with the feeding hole of the roller 5 and a discharging mechanism connected with the discharging hole of the collecting barrel 6.
The centrifugal fan component comprises a centrifugal fan I8 for providing negative pressure for the inner cavity of the roller 5 and a centrifugal fan for radiating the microwave emission componentA fan II7; the centrifugal fan I8 is connected with an air outlet of the collecting barrel 6 through an induced draft pipe 9, and a grid plate is arranged at the air outlet; the centrifugal fan II7 is connected with the air inlet of the material collecting barrel 6 through an air expanding pipe 13. For a 5 ton capacity drum 5, the air volume of the centrifugal fan I8 is 5000m 3 H, the air quantity of the centrifugal fan II7 is 1000m 3 /h。
The rotating mechanism comprises a motor 15, a gear ring 3 sleeved on a roller and a gear assembly, wherein the gear assembly comprises two gear sets 4 respectively arranged on two sides of the roller 5, the driving end of the motor 15 is fixedly connected with the gear set 4 on one side, and the gear set 4 is meshed with the gear ring 3 sleeved on the roller 5. The rotation of the motor 15 drives the rotation of the gear set 4 and thus the rotation of the drum 5 with the toothed ring 3.
The microwave transmitting assembly 14 comprises a shell 16 erected in the roller 5, wherein the end part of one side of the shell 16, which is far away from a feed inlet of the roller 5, is fixed on the inner side wall of the collecting barrel 6; the housing 5 comprises two mounting plates 1404, an included angle between the two mounting plates 1404 is an obtuse angle, the two mounting plates 1404 are both fixed on the cover plate 1402, and the two mounting plates 1404 and the cover plate 1402 enclose a mounting channel 1405; along the axial of the roller, a plurality of magnetrons 1401 are arranged on each mounting plate 1404 at equal intervals, an arc punching plate 1406 is covered outside the emission end of each magnetron 1401, sealing plates 1403 are arranged at two ends of each arc punching plate 1406, dense hole structures are arranged in the areas, between the corresponding mounting magnetrons 1401, of each arc punching plate 1406 and the corresponding mounting plates 1404, wind entering the centrifugal fan II7 is sent into the mounting channel 1405 through the air inlets, and the radian of each arc punching plate 1406 is 180 degrees. The structure of the microwave emitting assembly 14 of the present invention can effectively save the occupied space in the drum 5 on one hand, and can make the microwave uniformly distributed in the drum 5 on the other hand.
The magnetrons 1401 are arranged on the corresponding wall surfaces of the two mounting plates 1404 in two rows in an equidistant and aligned mode, the angle between the two mounting plates 1404 is 120-160 degrees, the arc-shaped punching plate 1406, the mounting plates 1404 and the sealing plate 1403 form a waveguide channel together, microwaves generated by the magnetrons 1401 are transmitted out of dense small holes on the arc-shaped punching plate 1406 and directly emitted to or reflected by the wall surface of the roller 5 and then emitted to grain materials scattered in the roller 5 and grain materials accumulated at the bottom to heat and dry the grain materials. The two mounting plates 1404 are provided with dense hole structures in the regions between the corresponding mounting magnetrons 1401, the regions are positioned between two rows of magnetrons 1401, the two mounting plates 1404 and the housing 1402 jointly enclose the combined mounting channel 1405, the mounting channel 1405 simultaneously plays a role in carrying out concentrated heat dissipation on the magnetrons 1401 by cold air, the cold air enters the mounting channel 1405 by the centrifugal fan II7 in a flowing manner, enters the mounting channel 1405 by the air expansion pipe 13, heat is transmitted out from the dense holes of the mounting plates 1405 after the heat dissipation and cooling of the magnetrons 1401 is carried out, and enters the roller 1401, so that the cooling heat of the magnetrons is fully utilized, the energy waste is avoided, and the energy utilization rate of the system is improved. In addition, the feed inlet of the roller 5 is positioned above the microwave transmitting assembly 14, the microwave transmitting assembly 14 is positioned on the right side of the middle of the roller 5, two transmitting arc surfaces of the microwave transmitting assembly 14 respectively correspond to the upper left area and the lower left area of the roller 5, the feeding mechanism feeds materials into the roller 5 through the material guide hopper 2 which is obliquely arranged on the plane where the feed inlet is positioned, and the oblique angle is 45 degrees.
The operation process of the dryer of the invention is as follows: in the loading stage, the material is loaded into grain material from a feed hopper 10 of a hoister 11, enters a rotating drum 5 through a horizontal conveyor 1 and a material guide hopper 2, and is gradually conveyed into the drum 5 until the full load requirement is reached. And in the drying stage, a microwave emission component 14, a centrifugal fan II7 and a large centrifugal fan I8 are started, grains enter a material collecting barrel 6 at the tail end of a roller 5 and then enter a lifting machine 11 through a spiral conveyor positioned at the bottom of the material collecting barrel, the grains continuously pass through a grain flow direction controller 12, a horizontal conveyor 1 and a material guide hopper 2 after passing through the lifting machine 11 and then enter the rotary roller 5, the internal circulation is performed until the moisture of the grains is reduced to a desired value, the microwave emission component 14, the centrifugal fan I8 and the centrifugal fan II7 are closed, the material enters a discharging stage, the discharging process is performed, a motor 15 continuously drives a gear 4 to rotate, the rotary roller 5 continuously rotates through a gear ring 3, the materials enter the material collecting barrel 6 and then are conveyed into the bottom of the lifting machine 11 through the spiral conveyor arranged at the bottom of the material collecting barrel, the materials enter the grain flow direction controller 12 after being lifted, and the grain flow direction is adjusted so that the materials are discharged from a discharging pipe. The centrifugal fan I8 discharges the highly humid air in the drum 5 from the air discharge opening 16 into the atmosphere by negative pressure.
Example 2
As shown in fig. 14 to 22, the grain dryer with a horizontal roller coupled with microwave of the present invention includes a roller 5, a rotating mechanism for driving the roller 5 to rotate, and a microwave emitting assembly 14 disposed in the roller 5 and extending along the material flowing direction; the roller 5 is formed by welding and splicing a plurality of roller units 505, each roller unit 505 consists of an annular cylinder wall 501 and shoveling plates 53 arranged in the cylinder wall 501, eight shoveling plates 53 are uniformly distributed in the cylinder wall 501 of each roller unit 505 along the circumference, the shoveling plates 53 in adjacent roller units 505 are arranged in a 15-degree staggered manner, each shoveling plate 53 comprises a first shoveling plate 503 and a second shoveling plate 504 which are arranged at an included angle of 120 degrees, the first shoveling plate 503 is in a right-angled trapezoid shape, the second shoveling plate 504 is in a parallelogram shape, the long edge of the second shoveling plate 504 in the parallelogram shape is connected with the right-angled edge of the first shoveling plate 503 in the right-angled trapezoid shape, and the oblique edge of the first shoveling plate 503 is fixedly connected with the inner side wall of the roller 5; in the drum 5, the opening directions of all the shoveling plates 53 are consistent and consistent with the rotation direction of the drum 5; the lower bottom edge of the first shoveling plate 503 is arranged at one side close to the feed inlet of the roller 5; the length difference between the upper bottom edge and the lower bottom edge of the first shoveling plate 503 is 15cm, and the length ratio of the corresponding width of the upper bottom edge of the first shoveling plate 503 to the parallelogram of the second shoveling plate 504 is 2:1. the dryer of example 2 is identical to example 1 in the rest of the structure, and the working process is also identical to example 1.
Claims (10)
1. A grain drying machine with a horizontal roller coupled with microwave is characterized in that: comprises a roller (5), a rotating mechanism driving the roller (5) to rotate and a microwave transmitting assembly (14) arranged in the roller (5) and extending along the material flowing direction; the device also comprises a centrifugal fan component and a shoveling plate component (51) arranged on the side wall of the roller (5); the shoveling plate assembly (51) comprises a plurality of groups of shoveling plate structures (52) arranged along the axial direction of the roller (5), and the plurality of groups of shoveling plate structures (52) are periodically arranged in the roller (5); each group of shoveling plate structures (52) comprises 6-8 shoveling plates (53) which are uniformly distributed along the circumference, and the shoveling plates (53) in the adjacent group of shoveling plate structures (52) are arranged in a staggered manner; the shoveling plate (53) comprises a first shoveling plate (503) and a second shoveling plate (504) which are arranged at an included angle larger than 90 degrees, the first shoveling plate (503) is in a right-angled trapezoid shape, the second shoveling plate (504) is in a parallelogram shape, the long edge of the second shoveling plate (504) in the parallelogram shape is connected with the right-angled edge of the first shoveling plate (503) in the right-angled trapezoid shape, and the oblique edge of the first shoveling plate (503) is fixedly connected with the inner side wall of the roller (5); in the shoveling plate assembly (51), the opening directions of all shoveling plates (53) are consistent and are consistent with the rotation direction of the roller (5); the lower bottom edge of the first shoveling plate (503) is arranged at one side close to a feeding hole of the roller (5).
2. The utility model provides a grain drying machine of horizontal drum coupling microwave which characterized in that: comprises a roller (5), a rotating mechanism driving the roller (5) to rotate and a microwave transmitting assembly (14) arranged in the roller (5) and extending along the material flowing direction; the roller (5) is formed by splicing a plurality of roller units (505), each roller unit (505) consists of an annular cylinder wall (501) and shoveling plates (53) arranged in the cylinder wall (501), 6-8 shoveling plates (53) are uniformly distributed in the cylinder wall (501) of each roller unit (505) along the circumference, and the shoveling plates (53) in the adjacent roller units (505) are arranged in a staggered manner; the shoveling plate (53) comprises a first shoveling plate (503) and a second shoveling plate (504) which are arranged at an included angle larger than 90 degrees, the first shoveling plate (503) is in a right-angled trapezoid shape, the second shoveling plate (504) is in a parallelogram shape, the long edge of the second shoveling plate (504) in the parallelogram shape is connected with the right-angled edge of the first shoveling plate (503) in the right-angled trapezoid shape, and the oblique edge of the first shoveling plate (503) is fixedly connected with the inner side wall of the roller (5); in the shoveling plate assembly (51), the opening directions of all shoveling plates (53) are consistent and are consistent with the rotation direction of the roller (5); the lower bottom edge of the first shoveling plate (503) is arranged at one side close to the feed inlet of the roller (5).
3. The horizontal drum microwave-coupled grain dryer according to claim 1 or 2, wherein: the length difference between the upper bottom edge and the lower bottom edge of the first shoveling plate (503) is 12-18 cm.
4. The horizontal drum microwave-coupled grain dryer of claim 1 or 2, wherein: the included angle between the first shoveling plate (503) and the second shoveling plate (504) is 120-130 degrees; the length ratio of the corresponding width of the upper bottom edge of the first shoveling plate (503) to the parallelogram of the second shoveling plate (504) is 2-2.5: 1.
5. the horizontal drum microwave-coupled grain dryer of claim 1 or 2, wherein: the material collecting device is characterized by also comprising a material collecting barrel (6) rotationally connected with the roller (5), wherein the material collecting barrel (6) is sleeved at the end part of one side of the roller (5), the material collecting barrel (6) is rotationally connected with the roller (5) through a bearing structure, and a discharge opening, an air outlet and an air inlet are formed in the material collecting barrel (6); the device also comprises a feeding mechanism connected with the feed inlet of the roller (5) and a discharging mechanism connected with the discharge outlet of the collecting barrel (6).
6. The horizontal drum microwave-coupled grain dryer according to claim 1 or 2, wherein: the centrifugal fan assembly comprises a centrifugal fan I (8) for providing negative pressure for the inner cavity of the roller (5) and a centrifugal fan II (7) for radiating the microwave transmitting assembly; the centrifugal fan I (8) is connected with an air outlet of the collecting barrel (6) through an induced draft pipe (9), and a grid plate is arranged at the air outlet; and the centrifugal fan II (7) is connected with an air inlet of the material collecting barrel (6) through an air expanding pipe (13).
7. The horizontal drum microwave-coupled grain dryer of claim 6, wherein: for a roller (5) with the capacity of five tons, the air volume of the centrifugal fan I (8) is 5000-8000 m 3 H, the air quantity of the centrifugal fan II (7) is 1000-2000 m 3 /h。
8. The horizontal drum microwave-coupled grain dryer according to claim 1 or 2, wherein: the rotating mechanism comprises a motor (15), a gear ring (3) and a gear (4), wherein the gear ring (3) and the gear (4) are sleeved on the roller (5), the driving end of the motor (15) is fixedly connected with the gear (4), and the gear (4) and the gear ring (3) which is sleeved on the roller (5) are mutually meshed.
9. The horizontal drum microwave-coupled grain dryer according to claim 1 or 2, wherein: the microwave transmitting assembly (14) comprises a shell (16) erected in the roller (5), and the end part of one side, far away from a feed inlet of the roller (5), of the shell (16) is fixed on the inner side wall of the collecting barrel (6); the shell (16) comprises two mounting plates (1404), an included angle between the two mounting plates (1404) is an obtuse angle, the two mounting plates (1404) are both fixed on the cover plate (1402), and the two mounting plates (1404) and the cover plate (1402) enclose to form a mounting channel (1405); along the roller axial direction, a plurality of magnetrons (1401) are installed on each mounting plate (1404) at equal intervals, arc-shaped punching plates (1406) are covered on the emitting ends of the magnetrons (1401), sealing plates (1403) are arranged at two ends of the arc-shaped punching plates (1406), dense hole structures are formed in the areas, between the corresponding mounting magnetrons (1401), of the arc-shaped punching plates (1406) and the two mounting plates (1404), and wind entering the centrifugal fan II (7) is sent into the mounting channel (1405) through an air inlet in the material collecting barrel (6).
10. The horizontal drum microwave-coupled grain dryer of claim 9, wherein: the included angle between the two mounting plates (1404) is 120-160 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211039089.3A CN115435559B (en) | 2022-08-29 | 2022-08-29 | Grain drier with horizontal roller coupled with microwaves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211039089.3A CN115435559B (en) | 2022-08-29 | 2022-08-29 | Grain drier with horizontal roller coupled with microwaves |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115435559A true CN115435559A (en) | 2022-12-06 |
| CN115435559B CN115435559B (en) | 2024-04-19 |
Family
ID=84243971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211039089.3A Active CN115435559B (en) | 2022-08-29 | 2022-08-29 | Grain drier with horizontal roller coupled with microwaves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115435559B (en) |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100523363B1 (en) * | 2005-01-25 | 2005-10-24 | (주)웨이브트로닉스 | Food waster drying treatment apparatus for using micro wave |
| CN200943994Y (en) * | 2006-06-19 | 2007-09-05 | 林清矫 | Drum-type microwave water-removing drying machine |
| DE102007055488A1 (en) * | 2006-12-01 | 2008-06-05 | Püschner GmbH + Co. KG | Microwave-vacuum drying system for drying e.g. lumpy goods, has plastic drum with unsealed opening, which is selectively brought under inlet and outlet openings of vacuum container by rotation of drum |
| CN201096446Y (en) * | 2007-08-03 | 2008-08-06 | 霸州市华益科技发展有限公司 | Continuous type microwave material drying-machine |
| CN102519230A (en) * | 2011-12-16 | 2012-06-27 | 惠生工程（中国）有限公司 | Solid fuel drying equipment |
| CN102589258A (en) * | 2012-02-27 | 2012-07-18 | 李富旗 | Microwave drying equipment and dynamic microwave emission drying method thereof |
| CN206310886U (en) * | 2016-11-09 | 2017-07-07 | 昆明理工大学 | A kind of continous way hot wind and microwave couples drying system |
| CN206724580U (en) * | 2017-04-25 | 2017-12-08 | 东莞市曜申机械科技有限公司 | A kind of tunnel type micro wave machine internal structure |
| CN109489379A (en) * | 2018-11-13 | 2019-03-19 | 杭州浩知科技有限公司 | Drying equipment is used in a kind of energy-saving and environment-friendly papermaking printing |
| CN210320960U (en) * | 2019-07-26 | 2020-04-14 | 郑州鼎力新能源设备有限公司 | Roller structure of roller dryer |
| CN211177744U (en) * | 2019-11-29 | 2020-08-04 | 郑州鼎力新能源设备有限公司 | Grain drying-machine with shoveling plate bends |
| CN112857002A (en) * | 2021-03-18 | 2021-05-28 | 苏州宇上实业有限公司 | Intelligent microwave drying equipment |
| CN213931919U (en) * | 2020-10-14 | 2021-08-10 | 武汉美味源生物工程有限公司 | Continuous cleaning and automatic adjusting rectangular microwave continuous vacuum drying sterilization equipment |
| CN215113650U (en) * | 2021-05-31 | 2021-12-10 | 深圳市泽源能源股份有限公司 | Drying machine |
| WO2022116226A1 (en) * | 2020-12-05 | 2022-06-09 | 南京格洛特环境工程股份有限公司 | Cracking device for waste salt containing organic pollutants |
| CN114739122A (en) * | 2022-04-25 | 2022-07-12 | 农业农村部南京农业机械化研究所 | Grain circulating dryer of vibrating fluidized bed based on microwave heating |
-
2022
- 2022-08-29 CN CN202211039089.3A patent/CN115435559B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100523363B1 (en) * | 2005-01-25 | 2005-10-24 | (주)웨이브트로닉스 | Food waster drying treatment apparatus for using micro wave |
| CN200943994Y (en) * | 2006-06-19 | 2007-09-05 | 林清矫 | Drum-type microwave water-removing drying machine |
| DE102007055488A1 (en) * | 2006-12-01 | 2008-06-05 | Püschner GmbH + Co. KG | Microwave-vacuum drying system for drying e.g. lumpy goods, has plastic drum with unsealed opening, which is selectively brought under inlet and outlet openings of vacuum container by rotation of drum |
| CN201096446Y (en) * | 2007-08-03 | 2008-08-06 | 霸州市华益科技发展有限公司 | Continuous type microwave material drying-machine |
| CN102519230A (en) * | 2011-12-16 | 2012-06-27 | 惠生工程（中国）有限公司 | Solid fuel drying equipment |
| CN102589258A (en) * | 2012-02-27 | 2012-07-18 | 李富旗 | Microwave drying equipment and dynamic microwave emission drying method thereof |
| CN206310886U (en) * | 2016-11-09 | 2017-07-07 | 昆明理工大学 | A kind of continous way hot wind and microwave couples drying system |
| CN206724580U (en) * | 2017-04-25 | 2017-12-08 | 东莞市曜申机械科技有限公司 | A kind of tunnel type micro wave machine internal structure |
| CN109489379A (en) * | 2018-11-13 | 2019-03-19 | 杭州浩知科技有限公司 | Drying equipment is used in a kind of energy-saving and environment-friendly papermaking printing |
| CN210320960U (en) * | 2019-07-26 | 2020-04-14 | 郑州鼎力新能源设备有限公司 | Roller structure of roller dryer |
| CN211177744U (en) * | 2019-11-29 | 2020-08-04 | 郑州鼎力新能源设备有限公司 | Grain drying-machine with shoveling plate bends |
| CN213931919U (en) * | 2020-10-14 | 2021-08-10 | 武汉美味源生物工程有限公司 | Continuous cleaning and automatic adjusting rectangular microwave continuous vacuum drying sterilization equipment |
| WO2022116226A1 (en) * | 2020-12-05 | 2022-06-09 | 南京格洛特环境工程股份有限公司 | Cracking device for waste salt containing organic pollutants |
| CN112857002A (en) * | 2021-03-18 | 2021-05-28 | 苏州宇上实业有限公司 | Intelligent microwave drying equipment |
| CN215113650U (en) * | 2021-05-31 | 2021-12-10 | 深圳市泽源能源股份有限公司 | Drying machine |
| CN114739122A (en) * | 2022-04-25 | 2022-07-12 | 农业农村部南京农业机械化研究所 | Grain circulating dryer of vibrating fluidized bed based on microwave heating |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115435559B (en) | 2024-04-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106871577B (en) | Microwave material drying device and microwave material drying method | |
| WO2023035588A1 (en) | Efficient energy-saving mud drying apparatus | |
| CN110081696A (en) | A kind of grain allocates blanking drying unit | |
| CN106766689B (en) | Microwave material drying device | |
| CN116358277A (en) | Online drying device of feed processing | |
| CN110108095A (en) | The microwave hot air combined drying equipment of ceramic material | |
| CN111174560A (en) | Dispersing, blanking and drying device for grains | |
| CN111174562A (en) | Layered grain drying device | |
| CN2391152Y (en) | Energy-saving panel turnover type scraper fluidized bed dryer | |
| CN106720293A (en) | A kind of grain drying device | |
| CN206160676U (en) | Soybean drying device | |
| CN201173667Y (en) | Drum-type drying device | |
| CN115435559A (en) | Grain drying machine with horizontal roller coupled with microwave | |
| CN208108752U (en) | A kind of curtain type grain drying device | |
| CN210014603U (en) | Microwave and hot air combined drying equipment for ceramic pug | |
| CN101122440A (en) | Self-flowing microwave leakage-free microwave heating dryer | |
| CN213020700U (en) | Organic fertilizer electrical heating stoving heat transfer device | |
| CN2418445Y (en) | Energy-saving type panel-turning-over air-flow drying machine | |
| KR20110121429A (en) | Rotary dry machine including double drum | |
| CN219368295U (en) | Spiral shoveling plate roller dryer | |
| CN218179552U (en) | Grain drying part of far infrared dryer | |
| CN219855484U (en) | Energy-saving and environment-friendly raw material dehumidifying and drying device | |
| CN220398108U (en) | Tunnel type continuous rapid drying equipment | |
| CN214665845U (en) | Novel non-tunnel type microwave drying equipment | |
| CN110579111A (en) | molybdenum fine powder drying system utilizing waste heat of roasting kiln |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant |